.𖥔 ݁ ˖🛸── .✦ about: You’re younger, sure — but CHANGBIN treats you like royalty. If it makes you smile, he’s buying it.
YOUNGER GIRLFRIEND SERIES MASTERLIST
❛ ━━━━━━･❪ 🐷 ❫ ･━━━━━━ ❜
Sure, you were younger than Changbin.
But he never made you feel small.
If anything — he treated you like you hung the stars in his sky.
Not in the overbearing, dramatic way either. Not loud declarations or public shows.
No, Seo Changbin loved you in the quiet, consistent way.
The kind of love that showed up in your favorite drink sitting on the table before you even asked. The kind of love that always kept an extra charger in his bag “just in case yours dies.” The kind of love that came with warm hoodies slipped over your head when it got cold, and fingers brushing hair from your face when you were too focused to notice it falling into your eyes.
And sometimes… it meant pulling out his wallet every time your eyes lit up — no questions asked.
It started innocently.
You had passed a claw machine at the convenience store. Inside: a pastel plush bear the size of your head, one with floppy ears and a little pink bow around its neck.
You had stopped to stare. Not long. Not dramatically. Just a moment where you tilted your head, smiled, and said quietly, “That’s cute.”
Changbin didn’t even hesitate.
You turned around just in time to hear the machine whir to life, and Changbin pulling out coins like he had a grudge against his wallet.
“Wait, you don’t have to—!”
“Shhh,” he said, eyes laser-focused on the controls. “Your boyfriend’s working.”
You blinked. “Did you just refer yourself—”
“Focus, baby. Manifest the win.”
And on the second try, somehow, he got it.
A perfectly clean grab. The bear flopped into the chute like fate wanted you to have it.
He scooped it out, shook it off, and placed it directly in your arms with a triumphant smirk. “Say thank you to CEO Seo.”
You held the bear, blushing and grinning, cheeks warm from the attention. “You didn’t have to do that…”
“But it made you smile.” He shrugged, still watching you.
That’s all it ever took for him.
If it made you smile, he was buying it.
The next time it happened, it was at the bookstore.
You were browsing manga, fingers running along spines while Changbin trailed behind you, mask pulled up, hoodie low over his eyes. He didn’t say much — just stayed close, hands in his pockets, eyes more on you than the shelves.
You pulled out a volume with a soft little “ooh,” and he instantly perked up.
“What’s that?”
“They finally restocked this one!” you said, showing him the cover. “I’ve been waiting for weeks.”
He nodded once. “Great. Let’s get it.”
You blinked. “No, I was just— I wasn’t planning to buy anything today.”
“You are now,” he said, plucking it from your hands and heading toward the register like it was a mission.
You laughed, jogging after him. “Changbin!”
“Too late!” he called over his shoulder. “Your happiness is already being processed via debit card.”
It got worse from there. Or better, depending on who you asked.
If you looked at a hoodie for too long — he was already asking for your size.
If you casually mentioned wanting to try a new café — it was on his calendar by the end of the day.
If your phone case was cracked? He had two in his cart the same night.
You tried to call him out on it once, halfway through lunch when he handed you a tiny shopping bag from a random store.
“Binnie,” you said, peeking into the bag. “This is that bracelet I pointed at for like, half a second yesterday.”
He grinned, chin resting in his palm. “And now it’s yours.”
You stared at him. “You’re spoiling me.”
“Good.”
“Binnie.” “Yes, jagi?”
“Seriously, why?”
He reached over, brushing your fingers with his. “Because I like the look on your face when you’re happy. That’s it. No big secret.”
He wasn’t doing it to impress you. He wasn’t trying to prove anything. He just genuinely wanted you to feel loved — and for Changbin, that meant action.
He couldn’t always put it into words. But he could show up. He could show you.
It wasn’t pride. He just loved watching your face light up. It gave him a sense of purpose. Power, even.
The knowledge that he could make you happy — with something as small as a keychain or as soft as a new hoodie — was his favorite addiction.
But you?
You noticed how he always gave and never took.
How he shrugged off compliments.
How he never bought things for himself that he actually wanted — only ever what he needed.
So you started saving. Quietly. Carefully. Not because he ever asked — but because you knew he’d never let you otherwise.
You were going to surprise him.
── ⟢ ・⸝⸝
It happened on a regular Thursday. Nothing fancy. Just a quiet, post-practice evening at the dorm.
Changbin had showered, hair still damp, hoodie thrown over his head, and he was curled up on the couch scrolling through his phone when you walked in with a small shopping bag.
“Hey,” you said softly.
He looked up, smiling automatically. “Hey, baby.”
You crossed the room, holding out the bag. “I, uh… I got you something.”
He blinked. “Me?”
“Yeah.”
“Why?” He sat up straighter, setting his phone down.
“Because I love you?” You shrugged.
Changbin chuckled, clearly amused but confused. He reached into the bag, pulled out the small black box inside, and popped it open.
His breath caught.
Inside, nestled on a velvet cushion, was a watch.
A sleek, limited edition black stainless steel one — the same one he had stopped to look at three separate times when you passed the store together over the past month.
“Y/N…” His voice came out half-whisper, stunned.
You smiled, a little nervous. “Do you like it?”
He didn’t speak. You tilted your head. “Binnie?”
He finally looked up, eyes glassy — not in a crying way, but like he couldn’t process it
“How did you…?”
“You kept looking at it. And pretending you weren’t. And telling me not to buy it for you.” You gave a small smile. “So I bought it for you.”
His lips parted, and he stared at the watch like it was something sacred. “But it’s expensive.”
“So are you.”
He let out a quiet, breathless laugh, but the way his fingers shook slightly when he touched the metal gave him away.
“I—” He ran a hand over his face. “You shouldn’t have. Seriously. You didn’t have to—”
“I wanted to.” You stepped closer and sat beside him.
“You always take care of me. You do so much. You never let me do anything for you. So let me have this one. Just this.”
He looked at you. Really looked at you.
And then, softly, “You remembered the exact one I liked.”
“Of course I did.”
“I didn’t even tell you the name—”
“Binnie,” you said gently, resting your hand on his chest. “I pay attention too.”
He was quiet again. His free hand slid up to your cheek, thumb brushing your skin. His voice dropped.
“You make me feel so loved.”
Your smile turned softer. “You make me feel like royalty every day. Just let me return the favor.”
He laughed again, but it cracked somewhere in the middle. His arms wrapped around you tightly, pulling you into his chest.
You could feel his heartbeat — fast and uneven.
“Thank you,” he murmured. “I’ve never… had someone do this kind of thing for me.”
You held him tighter. “Get used to it.”
He pulled back just enough to look at you, eyes shining with affection.
“I’m gonna marry you, you know that, right?”
You blinked, stunned for half a second — and then laughed. “You’re not even wearing the watch yet and you’re already making lifelong commitments?”
He grinned. “Put it on me, then.”
You did — carefully clasping the watch around his wrist.
It looked perfect on him.
“I’m never taking it off,” he said seriously, holding up his arm to admire it. “If anyone tries to steal it, I’ll fight.”
You raised a brow. “They won’t. Because they’d have to get through me first.”
He beamed. “You’re perfect.”
You leaned in. “So are you, my binnie.”
He groaned, flopping onto the couch dramatically. “You can’t just call me that after giving me a watch—my heart can’t take that much in one night!”
“Guess you’ll have to recover slowly.” You giggled and crawled onto his lap.
He wrapped his arms around your waist and kissed your temple. “I’m the luckiest man alive.”
And for once — just once — you got to see Seo Changbin spoiled into silence.
...know all about your past -- the ugly parts, the painful parts, the things that would've scared anyone else away -- and love you even more because of it. What you’ve been through doesn’t intimidate him or make him hesitate. If anything, it deepens his respect for you. He’s openly in awe of the person you became despite everything that tried to break you. Sometimes he can be a little overprotective, but it comes from the size of his heart and how deeply he cares about you. You’ve already endured more than your share of hardship. All he wants is to give you the best life he possibly can while you’re his and you've allowed him the honor of being yours.
...be able to sense when you’re uncomfortable from across the room and will drop everything just to check on you. He knows crowded places and loud spaces aren’t your favorite, so there are a few constants he always makes sure of whenever you’re somewhere busy together. First, he keeps track of every exit in the room. Not out of paranoia, but because he wants to know the fastest way to get you out if you need it. He notices the smallest shifts in your tone or body language, always aware of your surroundings, always tuned in to anything that might make you feel unsafe or uneasy. And he’s always ready to scoop you up and take you away the second you so much as ask -- sometimes before the words even leave your mouth. One look, one small tug on his sleeve, and he’s already moving, guiding you somewhere quieter and safer. He never makes you explain yourself or feel dramatic for needing space. To him, your comfort comes first, always. If leaving early means protecting your peace, then leaving early is never a question.
...work out a lot to become strong enough to protect you from any physical harm. He’s fiercely protective of your heart and your mental health, yes. But he’s just as intentional about protecting you physically. One of his greatest fears is not being able to win a fight if it ever came down to defending you. So, he trains multiple days a week, building both muscle and skill, making sure he’s ready for any situation where you might need him. And afterward, he loves holding you close and feeling your body tucked against his chest. He especially loves it when you snuggle into his neck and cling tightly to his body, exuding trust in his strength. The way you feel safe in his arms, reminds him exactly why he works so hard in the first place.
...get strangely possessive for no obvious reason...and then you realize some random guy happened to glance in your direction, and Changbin didn’t like the look of his face. Suddenly, his arm slips around your waist, grip firm and unapologetic. His presence is suddenly dark and impossible to ignore. He doesn’t say anything; but he doesn’t need to. The silent message is clear: you’re his. Anyone who messes with you, messes with him, and they really don't want to do that. He won’t leave your side even for a second. He stakes his claim quietly, through small kisses pressed to your temple, draping his jacket over your shoulders even when it isn’t cold, pulling you into his lap despite the empty seat beside him. Part of it is instinct, a need to make sure you feel safe and protected. But another part is for him, too. He needs your weight against his chest, your warmth in his arms, the steady reminder that you’re okay, and that you choose him just as much as he chooses you. In the end, he calms down instantly the second you squeeze his hand twice (your silent signal to let him know you're okay and he doesn't need to go feral on anyone).
...do all the little things you never realized you needed. He puts his phone down the moment you start talking, because he knows how deeply you struggle with feeling heard and chosen. He memorizes the way you breathe when anxiety creeps in and syncs his breathing with yours, helping you when it’s hard to regulate on your own. He kisses your forehead after long, overwhelming days, because he knows how loud and unkind your thoughts can get. He never pushes you to “heal faster,” but rather celebrates every small step like it’s a victory parade, because he understands that healing takes time, and he’s endlessly proud of how hard you work to become the best version of yourself. He whispers things like “I’ve got you” and “you’re safe in my arms” so often they stop feeling like reassurance and start feeling like truth -- something you live inside of and become your oxygen.
